aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--Documentation/i386/IO-APIC.txt2
-rw-r--r--MAINTAINERS2
-rw-r--r--Makefile2
-rw-r--r--arch/x86/kernel/cpu/cpufreq/speedstep-smi.c39
-rw-r--r--arch/x86/kernel/cpu/mtrr/generic.c42
-rw-r--r--arch/x86/kernel/io_delay.c8
-rw-r--r--arch/x86/kernel/mfgpt_32.c1
-rw-r--r--arch/x86/kernel/setup_32.c9
-rw-r--r--arch/x86/kernel/setup_64.c2
-rw-r--r--arch/x86/kvm/mmu.c18
-rw-r--r--arch/x86/kvm/vmx.c7
-rw-r--r--arch/x86/mm/discontig_32.c1
-rw-r--r--arch/x86/mm/ioremap.c6
-rw-r--r--arch/x86/mm/pageattr.c2
-rw-r--r--drivers/acpi/pci_irq.c4
-rw-r--r--drivers/acpi/sbshc.c1
-rw-r--r--drivers/acpi/scan.c18
-rw-r--r--drivers/i2c/busses/Kconfig2
-rw-r--r--drivers/i2c/busses/i2c-omap.c36
-rw-r--r--drivers/i2c/i2c-core.c4
-rw-r--r--drivers/pci/setup-bus.c5
-rw-r--r--drivers/pnp/pnpacpi/rsparser.c8
-rw-r--r--fs/anon_inodes.c18
-rw-r--r--fs/file_table.c6
-rw-r--r--fs/hppfs/hppfs_kern.c435
-rw-r--r--fs/hugetlbfs/inode.c2
-rw-r--r--fs/namei.c63
-rw-r--r--fs/open.c12
-rw-r--r--fs/pipe.c19
-rw-r--r--fs/reiserfs/xattr.c110
-rw-r--r--fs/super.c1
-rw-r--r--include/asm-x86/pgtable.h2
-rw-r--r--include/linux/sched.h6
-rw-r--r--kernel/relay.c7
-rw-r--r--kernel/sched.c43
-rw-r--r--kernel/time/clocksource.c2
-rw-r--r--kernel/timer.c10
-rw-r--r--mm/hugetlb.c17
-rw-r--r--mm/slab.c4
-rw-r--r--mm/slub.c2
-rw-r--r--mm/tiny-shmem.c2
-rw-r--r--net/sunrpc/xprtrdma/svc_rdma_recvfrom.c21
-rw-r--r--sound/soc/codecs/tlv320aic3x.c2
43 files changed, 534 insertions, 469 deletions
diff --git a/Documentation/i386/IO-APIC.txt b/Documentation/i386/IO-APIC.txt
index f95166645d29..30b4c714fbe1 100644
--- a/Documentation/i386/IO-APIC.txt
+++ b/Documentation/i386/IO-APIC.txt
@@ -70,7 +70,7 @@ Every PCI card emits a PCI IRQ, which can be INTA, INTB, INTC or INTD:
These INTA-D PCI IRQs are always 'local to the card', their real meaning
depends on which slot they are in. If you look at the daisy chaining diagram,
-a card in slot4, issuing INTA IRQ, it will end up as a signal on PIRQ2 of
+a card in slot4, issuing INTA IRQ, it will end up as a signal on PIRQ4 of
the PCI chipset. Most cards issue INTA, this creates optimal distribution
between the PIRQ lines. (distributing IRQ sources properly is not a
necessity, PCI IRQs can be shared at will, but it's a good for performance
diff --git a/MAINTAINERS b/MAINTAINERS
index 73883b8bbd76..2f70e5c10ae4 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2322,6 +2322,8 @@ P: Anil S Keshavamurthy
M: anil.s.keshavamurthy@intel.com
P: David S. Miller
M: davem@davemloft.net
+P: Masami Hiramatsu
+M: mhiramat@redhat.com
L: linux-kernel@vger.kernel.org
S: Maintained
diff --git a/Makefile b/Makefile
index 1c4c8f87f6c5..b08a259e21dc 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 25
-EXTRAVERSION = -rc6
+EXTRAVERSION = -rc7
NAME = Funky Weasel is Jiggy wit it
# *DOCUMENTATION*
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-smi.c b/arch/x86/kernel/cpu/cpufreq/speedstep-smi.c
index f2b5a621d27b..8a85c93bd62a 100644
--- a/arch/x86/kernel/cpu/cpufreq/speedstep-smi.c
+++ b/arch/x86/kernel/cpu/cpufreq/speedstep-smi.c
@@ -63,7 +63,7 @@ static struct cpufreq_frequency_table speedstep_freqs[] = {
*/
static int speedstep_smi_ownership (void)
{
- u32 command, result, magic;
+ u32 command, result, magic, dummy;
u32 function = GET_SPEEDSTEP_OWNER;
unsigned char magic_data[] = "Copyright (c) 1999 Intel Corporation";
@@ -73,8 +73,11 @@ static int speedstep_smi_ownership (void)
dprintk("trying to obtain ownership with command %x at port %x\n", command, smi_port);
__asm__ __volatile__(
+ "push %%ebp\n"
"out %%al, (%%dx)\n"
- : "=D" (result)
+ "pop %%ebp\n"
+ : "=D" (result), "=a" (dummy), "=b" (dummy), "=c" (dummy), "=d" (dummy),
+ "=S" (dummy)
: "a" (command), "b" (function), "c" (0), "d" (smi_port),
"D" (0), "S" (magic)
: "memory"
@@ -96,7 +99,7 @@ static int speedstep_smi_ownership (void)
*/
static int speedstep_smi_get_freqs (unsigned int *low, unsigned int *high)
{
- u32 command, result = 0, edi, high_mhz, low_mhz;
+ u32 command, result = 0, edi, high_mhz, low_mhz, dummy;
u32 state=0;
u32 function = GET_SPEEDSTEP_FREQS;
@@ -109,10 +112,12 @@ static int speedstep_smi_get_freqs (unsigned int *low, unsigned int *high)
dprintk("trying to determine frequencies with command %x at port %x\n", command, smi_port);
- __asm__ __volatile__("movl $0, %%edi\n"
+ __asm__ __volatile__(
+ "push %%ebp\n"
"out %%al, (%%dx)\n"
- : "=a" (result), "=b" (high_mhz), "=c" (low_mhz), "=d" (state), "=D" (edi)
- : "a" (command), "b" (function), "c" (state), "d" (smi_port), "S" (0)
+ "pop %%ebp"
+ : "=a" (result), "=b" (high_mhz), "=c" (low_mhz), "=d" (state), "=D" (edi), "=S" (dummy)
+ : "a" (command), "b" (function), "c" (state), "d" (smi_port), "S" (0), "D" (0)
);
dprintk("result %x, low_freq %u, high_freq %u\n", result, low_mhz, high_mhz);
@@ -135,16 +140,18 @@ static int speedstep_smi_get_freqs (unsigned int *low, unsigned int *high)
static int speedstep_get_state (void)
{
u32 function=GET_SPEEDSTEP_STATE;
- u32 result, state, edi, command;
+ u32 result, state, edi, command, dummy;
command = (smi_sig & 0xffffff00) | (smi_cmd & 0xff);
dprintk("trying to determine current setting with command %x at port %x\n", command, smi_port);
- __asm__ __volatile__("movl $0, %%edi\n"
+ __asm__ __volatile__(
+ "push %%ebp\n"
"out %%al, (%%dx)\n"
- : "=a" (result), "=b" (state), "=D" (edi)
- : "a" (command), "b" (function), "c" (0), "d" (smi_port), "S" (0)
+ "pop %%ebp\n"
+ : "=a" (result), "=b" (state), "=D" (edi), "=c" (dummy), "=d" (dummy), "=S" (dummy)
+ : "a" (command), "b" (function), "c" (0), "d" (smi_port), "S" (0), "D" (0)
);
dprintk("state is %x, result is %x\n", state, result);
@@ -160,7 +167,7 @@ static int speedstep_get_state (void)
*/
static void speedstep_set_state (unsigned int state)
{
- unsigned int result = 0, command, new_state;
+ unsigned int result = 0, command, new_state, dummy;
unsigned long flags;
unsigned int function=SET_SPEEDSTEP_STATE;
unsigned int retry = 0;
@@ -182,10 +189,12 @@ static void speedstep_set_state (unsigned int state)
}
retry++;
__asm__ __volatile__(
- "movl $0, %%edi\n"
+ "push %%ebp\n"
"out %%al, (%%dx)\n"
- : "=b" (new_state), "=D" (result)
- : "a" (command), "b" (function), "c" (state), "d" (smi_port), "S" (0)
+ "pop %%ebp"
+ : "=b" (new_state), "=D" (result), "=c" (dummy), "=a" (dummy),
+ "=d" (dummy), "=S" (dummy)
+ : "a" (command), "b" (function), "c" (state), "d" (smi_port), "S" (0), "D" (0)
);
} while ((new_state != state) && (retry <= SMI_TRIES));
@@ -195,7 +204,7 @@ static void speedstep_set_state (unsigned int state)
if (new_state == state) {
dprintk("change to %u MHz succeeded after %u tries with result %u\n", (speedstep_freqs[new_state].frequency / 1000), retry, result);
} else {
- printk(KERN_ERR "cpufreq: change failed with new_state %u and result %u\n", new_state, result);
+ printk(KERN_ERR "cpufreq: change to state %u failed with new_state %u and result %u\n", state, new_state, result);
}
return;
diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c
index 103d61a59b19..3e18db4cefee 100644
--- a/arch/x86/kernel/cpu/mtrr/generic.c
+++ b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -176,12 +176,13 @@ static inline void k8_enable_fixed_iorrs(void)
}
/**
- * Checks and updates an fixed-range MTRR if it differs from the value it
- * should have. If K8 extentions are wanted, update the K8 SYSCFG MSR also.
- * see AMD publication no. 24593, chapter 7.8.1, page 233 for more information
- * \param msr MSR address of the MTTR which should be checked and updated
- * \param changed pointer which indicates whether the MTRR needed to be changed
- * \param msrwords pointer to the MSR values which the MSR should have
+ * set_fixed_range - checks & updates a fixed-range MTRR if it differs from the value it should have
+ * @msr: MSR address of the MTTR which should be checked and updated
+ * @changed: pointer which indicates whether the MTRR needed to be changed
+ * @msrwords: pointer to the MSR values which the MSR should have
+ *
+ * If K8 extentions are wanted, update the K8 SYSCFG MSR also.
+ * See AMD publication no. 24593, chapter 7.8.1, page 233 for more information.
*/
static void set_fixed_range(int msr, bool *changed, unsigned int *msrwords)
{
@@ -199,12 +200,15 @@ static void set_fixed_range(int msr, bool *changed, unsigned int *msrwords)
}
}
+/**
+ * generic_get_free_region - Get a free MTRR.
+ * @base: The starting (base) address of the region.
+ * @size: The size (in bytes) of the region.
+ * @replace_reg: mtrr index to be replaced; set to invalid value if none.
+ *
+ * Returns: The index of the region on success, else negative on error.
+ */
int generic_get_free_region(unsigned long base, unsigned long size, int replace_reg)
-/* [SUMMARY] Get a free MTRR.
- <base> The starting (base) address of the region.
- <size> The size (in bytes) of the region.
- [RETURNS] The index of the region on success, else -1 on error.
-*/
{
int i, max;
mtrr_type ltype;
@@ -249,8 +253,8 @@ static void generic_get_mtrr(unsigned int reg, unsigned long *base,
}
/**
- * Checks and updates the fixed-range MTRRs if they differ from the saved set
- * \param frs pointer to fixed-range MTRR values, saved by get_fixed_ranges()
+ * set_fixed_ranges - checks & updates the fixed-range MTRRs if they differ from the saved set
+ * @frs: pointer to fixed-range MTRR values, saved by get_fixed_ranges()
*/
static int set_fixed_ranges(mtrr_type * frs)
{
@@ -294,13 +298,13 @@ static bool set_mtrr_var_ranges(unsigned int index, struct mtrr_var_range *vr)
static u32 deftype_lo, deftype_hi;
+/**
+ * set_mtrr_state - Set the MTRR state for this CPU.
+ *
+ * NOTE: The CPU must already be in a safe state for MTRR changes.
+ * RETURNS: 0 if no changes made, else a mask indicating what was changed.
+ */
static unsigned long set_mtrr_state(void)
-/* [SUMMARY] Set the MTRR state for this CPU.
- <state> The MTRR state information to read.
- <ctxt> Some relevant CPU context.
- [NOTE] The CPU must already be in a safe state for MTRR changes.
- [RETURNS] 0 if no changes made, else a mask indication what was changed.
-*/
{
unsigned int i;
unsigned long change_mask = 0;
diff --git a/arch/x86/kernel/io_delay.c b/arch/x86/kernel/io_delay.c
index c706a3061553..5921e5f0a640 100644
--- a/arch/x86/kernel/io_delay.c
+++ b/arch/x86/kernel/io_delay.c
@@ -78,6 +78,14 @@ static struct dmi_system_id __initdata io_delay_0xed_port_dmi_table[] = {
},
{
.callback = dmi_io_delay_0xed_port,
+ .ident = "HP Pavilion dv6000",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Quanta"),
+ DMI_MATCH(DMI_BOARD_NAME, "30B8")
+ }
+ },
+ {
+ .callback = dmi_io_delay_0xed_port,
.ident = "HP Pavilion tx1000",
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "Quanta"),
diff --git a/arch/x86/kernel/mfgpt_32.c b/arch/x86/kernel/mfgpt_32.c
index 027fc067b399..b402c0f3f192 100644
--- a/arch/x86/kernel/mfgpt_32.c
+++ b/arch/x86/kernel/mfgpt_32.c
@@ -30,6 +30,7 @@
#include <linux/kernel.h>
#include <linux/interrupt.h>
+#include <linux/module.h>
#include <asm/geode.h>
static struct mfgpt_timer_t {
diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c
index a1d7071a51c9..2b3e5d45176b 100644
--- a/arch/x86/kernel/setup_32.c
+++ b/arch/x86/kernel/setup_32.c
@@ -406,8 +406,6 @@ static unsigned long __init setup_memory(void)
*/
min_low_pfn = PFN_UP(init_pg_tables_end);
- find_max_pfn();
-
max_low_pfn = find_max_low_pfn();
#ifdef CONFIG_HIGHMEM
@@ -764,12 +762,13 @@ void __init setup_arch(char **cmdline_p)
if (efi_enabled)
efi_init();
- max_low_pfn = setup_memory();
-
/* update e820 for memory not covered by WB MTRRs */
+ find_max_pfn();
mtrr_bp_init();
if (mtrr_trim_uncached_memory(max_pfn))
- max_low_pfn = setup_memory();
+ find_max_pfn();
+
+ max_low_pfn = setup_memory();
#ifdef CONFIG_VMI
/*
diff --git a/arch/x86/kernel/setup_64.c b/arch/x86/kernel/setup_64.c
index 7637dc91c79b..f4f7ecfb898c 100644
--- a/arch/x86/kernel/setup_64.c
+++ b/arch/x86/kernel/setup_64.c
@@ -801,7 +801,7 @@ static void __cpuinit srat_detect_node(void)
/* Don't do the funky fallback heuristics the AMD version employs
for now. */
node = apicid_to_node[apicid];
- if (node == NUMA_NO_NODE)
+ if (node == NUMA_NO_NODE || !node_online(node))
node = first_node(node_online_map);
numa_set_node(cpu, node);
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index d8172aabc660..e55af12e11b7 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -222,8 +222,7 @@ static int is_io_pte(unsigned long pte)
static int is_rmap_pte(u64 pte)
{
- return pte != shadow_trap_nonpresent_pte
- && pte != shadow_notrap_nonpresent_pte;
+ return is_shadow_present_pte(pte);
}
static gfn_t pse36_gfn_delta(u32 gpte)
@@ -893,14 +892,25 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *shadow_pte,
int *ptwrite, gfn_t gfn, struct page *page)
{
u64 spte;
- int was_rmapped = is_rmap_pte(*shadow_pte);
+ int was_rmapped = 0;
int was_writeble = is_writeble_pte(*shadow_pte);
+ hfn_t host_pfn = (*shadow_pte & PT64_BASE_ADDR_MASK) >> PAGE_SHIFT;
pgprintk("%s: spte %llx access %x write_fault %d"
" user_fault %d gfn %lx\n",
__FUNCTION__, *shadow_pte, pt_access,
write_fault, user_fault, gfn);
+ if (is_rmap_pte(*shadow_pte)) {
+ if (host_pfn != page_to_pfn(page)) {
+ pgprintk("hfn old %lx new %lx\n",
+ host_pfn, page_to_pfn(page));
+ rmap_remove(vcpu->kvm, shadow_pte);
+ }
+ else
+ was_rmapped = 1;
+ }
+
/*
* We don't set the accessed bit, since we sometimes want to see
* whether the guest actually used the pte (in order to detect
@@ -1402,7 +1412,7 @@ static void mmu_guess_page_from_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
up_read(&current->mm->mmap_sem);
vcpu->arch.update_pte.gfn = gfn;
- vcpu->arch.update_pte.page = gfn_to_page(vcpu->kvm, gfn);
+ vcpu->arch.update_pte.page = page;
}
void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 94ea724638fd..8e1462880d1f 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -349,8 +349,6 @@ static void update_exception_bitmap(struct kvm_vcpu *vcpu)
static void reload_tss(void)
{
-#ifndef CONFIG_X86_64
-
/*
* VT restores TR but not its size. Useless.
*/
@@ -361,7 +359,6 @@ static void reload_tss(void)
descs = (void *)gdt.base;
descs[GDT_ENTRY_TSS].type = 9; /* available TSS */
load_TR_desc();
-#endif
}
static void load_transition_efer(struct vcpu_vmx *vmx)
@@ -1436,7 +1433,7 @@ static int init_rmode_tss(struct kvm *kvm)
int ret = 0;
int r;
- down_read(&current->mm->mmap_sem);
+ down_read(&kvm->slots_lock);
r = kvm_clear_guest_page(kvm, fn, 0, PAGE_SIZE);
if (r < 0)
goto out;
@@ -1459,7 +1456,7 @@ static int init_rmode_tss(struct kvm *kvm)
ret = 1;
out:
- up_read(&current->mm->mmap_sem);
+ up_read(&kvm->slots_lock);
return ret;
}
diff --git a/arch/x86/mm/discontig_32.c b/arch/x86/mm/discontig_32.c
index c394ca0720b8..8e25e06ff730 100644
--- a/arch/x86/mm/discontig_32.c
+++ b/arch/x86/mm/discontig_32.c
@@ -324,7 +324,6 @@ unsigned long __init setup_memory(void)
* this space and use it to adjust the boundary between ZONE_NORMAL
* and ZONE_HIGHMEM.
*/
- find_max_pfn();
get_memcfg_numa();
kva_pages = calculate_numa_remap_pages();
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 4afaba0ed722..794895c6dcc9 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -137,7 +137,11 @@ static void __iomem *__ioremap(resource_size_t phys_addr, unsigned long size,
switch (mode) {
case IOR_MODE_UNCACHED:
default:
- prot = PAGE_KERNEL_NOCACHE;
+ /*
+ * FIXME: we will use UC MINUS for now, as video fb drivers
+ * depend on it. Upcoming ioremap_wc() will fix this behavior.
+ */
+ prot = PAGE_KERNEL_UC_MINUS;
break;
case IOR_MODE_CACHED:
prot = PAGE_KERNEL;
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 14e48b5a94ba..7b79f6be4e7d 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -771,7 +771,7 @@ static inline int change_page_attr_clear(unsigned long addr, int numpages,
int set_memory_uc(unsigned long addr, int numpages)
{
return change_page_attr_set(addr, numpages,
- __pgprot(_PAGE_PCD | _PAGE_PWT));
+ __pgprot(_PAGE_PCD));
}
EXPORT_SYMBOL(set_memory_uc);
diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c
index 7af414a3c63e..89022a74faee 100644
--- a/drivers/acpi/pci_irq.c
+++ b/drivers/acpi/pci_irq.c
@@ -131,8 +131,8 @@ struct prt_quirk {
*/
static struct prt_quirk prt_quirks[] = {
{ medion_md9580, 0, 0, 9, 'A',
- "\\_SB_.PCI0.ISA.LNKA",
- "\\_SB_.PCI0.ISA.LNKB"},
+ "\\_SB_.PCI0.ISA_.LNKA",
+ "\\_SB_.PCI0.ISA_.LNKB"},
{ dell_optiplex, 0, 0, 0xd, 'A',
"\\_SB_.LNKB",
"\\_SB_.LNKA"},
diff --git a/drivers/acpi/sbshc.c b/drivers/acpi/sbshc.c
index a2cf3008ce6c..bcf2c70fca87 100644
--- a/drivers/acpi/sbshc.c
+++ b/drivers/acpi/sbshc.c
@@ -130,7 +130,6 @@ static int acpi_smbus_transaction(struct acpi_smb_hc *hc, u8 protocol,
goto end;
}
smb_hc_write(hc, ACPI_SMB_COMMAND, command);
- smb_hc_write(hc, ACPI_SMB_COMMAND, command);
if (!(protocol & 0x01)) {
smb_hc_write(hc, ACPI_SMB_BLOCK_COUNT, length);
for (i = 0; i < length; ++i)
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 57570ac47803..e6ce262b5d44 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -39,20 +39,26 @@ static int create_modalias(struct acpi_device *acpi_dev, char *modalias,
int size)
{
int len;
+ int count;
- if (!acpi_dev->flags.hardware_id)
+ if (!acpi_dev->flags.hardware_id && !acpi_dev->flags.compatible_ids)
return -ENODEV;
- len = snprintf(modalias, size, "acpi:%s:",
- acpi_dev->pnp.hardware_id);
- if (len < 0 || len >= size)
- return -EINVAL;
+ len = snprintf(modalias, size, "acpi:");
size -= len;
+ if (acpi_dev->flags.hardware_id) {
+ count = snprintf(&modalias[len], size, "%s:",
+ acpi_dev->pnp.hardware_id);
+ if (count < 0 || count >= size)
+ return -EINVAL;
+ len += count;
+ size -= count;
+ }
+
if (acpi_dev->flags.compatible_ids) {
struct acpi_compatible_id_list *cid_list;
int i;
- int count;
cid_list = acpi_dev->pnp.cid_list;
for (i = 0; i < cid_list->count; i++) {
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 476b0bb72d6c..5fa9c3c67e0c 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -100,7 +100,7 @@ config I2C_AU1550
config I2C_BLACKFIN_TWI
tristate "Blackfin TWI I2C support"
- depends on BF534 || BF536 || BF537 || BF54x
+ depends on BF534 || BF536 || BF537
help
This is the TWI I2C device driver for Blackfin 534/536/537/54x.
This driver can also be built as a module. If so, the module
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index da6639707ea3..7ba31770d773 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -128,6 +128,8 @@ struct omap_i2c_dev {
size_t buf_len;
struct i2c_adapter adapter;
unsigned rev1:1;
+ unsigned idle:1;
+ u16 iestate; /* Saved interrupt register */
};
static inline void omap_i2c_write_reg(struct omap_i2c_dev *i2c_dev,
@@ -174,18 +176,30 @@ static void omap_i2c_put_clocks(struct omap_i2c_dev *dev)
}
}
-static void omap_i2c_enable_clocks(struct omap_i2c_dev *dev)
+static void omap_i2c_unidle(struct omap_i2c_dev *dev)
{
if (dev->iclk != NULL)
clk_enable(dev->iclk);
clk_enable(dev->fclk);
+ if (dev->iestate)
+ omap_i2c_write_reg(dev, OMAP_I2C_IE_REG, dev->iestate);
+ dev->idle = 0;
}
-static void omap_i2c_disable_clocks(struct omap_i2c_dev *dev)
+static void omap_i2c_idle(struct omap_i2c_dev *dev)
{
+ u16 iv;
+
+ dev->idle = 1;
+ dev->iestate = omap_i2c_read_reg(dev, OMAP_I2C_IE_REG);
+ omap_i2c_write_reg(dev, OMAP_I2C_IE_REG, 0);
+ if (dev->rev1)
+ iv = omap_i2c_read_reg(dev, OMAP_I2C_IV_REG); /* Read clears */
+ else
+ omap_i2c_write_reg(dev, OMAP_I2C_STAT_REG, dev->iestate);
+ clk_disable(dev->fclk);
if (dev->iclk != NULL)
clk_disable(dev->iclk);
- clk_disable(dev->fclk);
}
static int omap_i2c_init(struct omap_i2c_dev *dev)
@@ -360,7 +374,7 @@ omap_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
int i;
int r;
- omap_i2c_enable_clocks(dev);
+ omap_i2c_unidle(dev);
if ((r = omap_i2c_wait_for_bb(dev)) < 0)
goto out;
@@ -374,7 +388,7 @@ omap_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
if (r == 0)
r = num;
out:
- omap_i2c_disable_clocks(dev);
+ omap_i2c_idle(dev);
return r;
}
@@ -403,6 +417,9 @@ omap_i2c_rev1_isr(int this_irq, void *dev_id)
struct omap_i2c_dev *dev = dev_id;
u16 iv, w;
+ if (dev->idle)
+ return IRQ_NONE;
+
iv = omap_i2c_read_reg(dev, OMAP_I2C_IV_REG);
switch (iv) {
case 0x00: /* None */
@@ -457,6 +474,9 @@ omap_i2c_isr(int this_irq, void *dev_id)
u16 stat, w;
int count = 0;
+ if (dev->idle)
+ return IRQ_NONE;
+
bits = omap_i2c_read_reg(dev, OMAP_I2C_IE_REG);
while ((stat = (omap_i2c_read_reg(dev, OMAP_I2C_STAT_REG))) & bits) {
dev_dbg(dev->dev, "IRQ (ISR = 0x%04x)\n", stat);
@@ -575,7 +595,7 @@ omap_i2c_probe(struct platform_device *pdev)
if ((r = omap_i2c_get_clocks(dev)) != 0)
goto err_free_mem;
- omap_i2c_enable_clocks(dev);
+ omap_i2c_unidle(dev);
if (cpu_is_omap15xx())
dev->rev1 = omap_i2c_read_reg(dev, OMAP_I2C_REV_REG) < 0x20;
@@ -610,7 +630,7 @@ omap_i2c_probe(struct platform_device *pdev)
goto err_free_irq;
}
- omap_i2c_disable_clocks(dev);
+ omap_i2c_idle(dev);
return 0;
@@ -618,7 +638,7 @@ err_free_irq:
free_irq(dev->irq, dev);
err_unuse_clocks:
omap_i2c_write_reg(dev, OMAP_I2C_CON_REG, 0);
- omap_i2c_disable_clocks(dev);
+ omap_i2c_idle(dev);
omap_i2c_put_clocks(dev);
err_free_mem:
platform_set_drvdata(pdev, NULL);
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index fd84b2a36338..8b645c6b2cb5 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -489,8 +489,8 @@ EXPORT_SYMBOL(i2c_add_adapter);
* Context: can sleep
*
* This routine is used to declare an I2C adapter when its bus number
- * matters. Example: for I2C adapters from system-on-chip CPUs, or
- * otherwise built in to the system's mainboard, and where i2c_board_info
+ * matters. For example, use it for I2C adapters from system-on-chip CPUs,
+ * or otherwise built in to the system's mainboard, and where i2c_board_info
* is used to properly configure I2C devices.
*
* If no devices have pre-been declared for this bus, then be sure to
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 125e7b7f34ff..f7cb8e0758b4 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -486,12 +486,7 @@ void __ref pci_bus_size_bridges(struct pci_bus *bus)
break;
case PCI_CLASS_BRIDGE_PCI:
- /* don't size subtractive decoding (transparent)
- * PCI-to-PCI bridges */
- if (bus->self->transparent)
- break;
pci_bridge_check_ranges(bus);
- /* fall through */
default:
pbus_size_io(bus);
/* If the bridge supports prefetchable range, size it
diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c
index 6aa231ef642d..2dcd1960aca8 100644
--- a/drivers/pnp/pnpacpi/rsparser.c
+++ b/drivers/pnp/pnpacpi/rsparser.c
@@ -85,7 +85,7 @@ static void pnpacpi_parse_allocated_irqresource(struct pnp_resource_table *res,
i < PNP_MAX_IRQ)
i++;
if (i >= PNP_MAX_IRQ && !warned) {
- printk(KERN_ERR "pnpacpi: exceeded the max number of IRQ "
+ printk(KERN_WARNING "pnpacpi: exceeded the max number of IRQ "
"resources: %d \n", PNP_MAX_IRQ);
warned = 1;
return;
@@ -187,7 +187,7 @@ static void pnpacpi_parse_allocated_dmaresource(struct pnp_resource_table *res,
res->dma_resource[i].start = dma;
res->dma_resource[i].end = dma;
} else if (!warned) {
- printk(KERN_ERR "pnpacpi: exceeded the max number of DMA "
+ printk(KERN_WARNING "pnpacpi: exceeded the max number of DMA "
"resources: %d \n", PNP_MAX_DMA);
warned = 1;
}
@@ -213,7 +213,7 @@ static void pnpacpi_parse_allocated_ioresource(struct pnp_resource_table *res,
res->port_resource[i].start = io;
res->port_resource[i].end = io + len - 1;
} else if (!warned) {
- printk(KERN_ERR "pnpacpi: exceeded the max number of IO "
+ printk(KERN_WARNING "pnpacpi: exceeded the max number of IO "
"resources: %d \n", PNP_MAX_PORT);
warned = 1;
}
@@ -241,7 +241,7 @@ static void pnpacpi_parse_allocated_memresource(struct pnp_resource_table *res,
res->mem_resource[i].start = mem;
res->mem_resource[i].end = mem + len - 1;
} else if (!warned) {
- printk(KERN_ERR "pnpacpi: exceeded the max number of mem "
+ printk(KERN_WARNING "pnpacpi: exceeded the max number of mem "
"resources: %d\n", PNP_MAX_MEM);
warned = 1;
}
diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c
index 23321889d9b0..f42be069e085 100644
--- a/fs/anon_inodes.c
+++ b/fs/anon_inodes.c
@@ -81,13 +81,10 @@ int anon_inode_getfd(int *pfd, struct inode **pinode, struct file **pfile,
if (IS_ERR(anon_inode_inode))
return -ENODEV;
- file = get_empty_filp();
- if (!file)
- return -ENFILE;
error = get_unused_fd();
if (error < 0)
- goto err_put_filp;
+ return error;
fd = error;
/*
@@ -114,14 +111,15 @@ int anon_inode_getfd(int *pfd, struct inode **pinode, struct file **pfile,
dentry->d_flags &= ~DCACHE_UNHASHED;
d_instantiate(dentry, anon_inode_inode);
- file->f_path.mnt = mntget(anon_inode_mnt);
- file->f_path.dentry = dentry;
+ error = -ENFILE;
+ file = alloc_file(anon_inode_mnt, dentry,
+ FMODE_READ | FMODE_WRITE, fops);
+ if (!file)
+ goto err_dput;
file->f_mapping = anon_inode_inode->i_mapping;
file->f_pos = 0;
file->f_flags = O_RDWR;
- file->f_op = fops;
- file->f_mode = FMODE_READ | FMODE_WRITE;
file->f_version = 0;
file->private_data = priv;
@@ -132,10 +130,10 @@ int anon_inode_getfd(int *pfd, struct inode **pinode, struct file **pfile,
*pfile = file;
return 0;
+err_dput:
+ dput(dentry);
err_put_unused_fd:
put_unused_fd(fd);
-err_put_filp:
- put_filp(file);
return error;
}
EXPORT_SYMBOL_GPL(anon_inode_getfd);
diff --git a/fs/file_table.c b/fs/file_table.c
index 6d27befe2d48..986ff4ed0a7c 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -83,6 +83,12 @@ int proc_nr_files(ctl_table *table, int write, struct file *filp,
/* Find an unused file structure and return a pointer to it.
* Returns NULL, if there are no more free file structures or
* we run out of memory.
+ *
+ * Be very careful using this. You are responsible for
+ * getting write access to any mount that you might assign
+ * to this filp, if it is opened for write. If this is not
+ * done, you will imbalance int the mount's writer count
+ * and a warning at __fput() time.
*/
struct file *get_empty_filp(void)
{
diff --git a/fs/hppfs/hppfs_kern.c b/fs/hppfs/hppfs_kern.c
index a1e1f0f61aa5..8601d8ef3b55 100644
--- a/fs/hppfs/hppfs_kern.c
+++ b/fs/hppfs/hppfs_kern.c
@@ -1,23 +1,24 @@
/*
- * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
+ * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
-#include <linux/fs.h>
+#include <linux/ctype.h>
+#include <linux/dcache.h>
#include <linux/file.h>
-#include <linux/module.h>
+#include <linux/fs.h>
#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/list.h>
#include <linux/kernel.h>
-#include <linux/ctype.h>
-#include <linux/dcache.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/mount.h>
+#include <linux/slab.h>
#include <linux/statfs.h>
+#include <linux/types.h>
#include <asm/uaccess.h>
-#include <asm/fcntl.h>
#include "os.h"
-static int init_inode(struct inode *inode, struct dentry *dentry);
+static struct inode *get_inode(struct super_block *, struct dentry *);
struct hppfs_data {
struct list_head list;
@@ -51,14 +52,14 @@ static int is_pid(struct dentry *dentry)
int i;
sb = dentry->d_sb;
- if((sb->s_op != &hppfs_sbops) || (dentry->d_parent != sb->s_root))
- return(0);
+ if ((sb->s_op != &hppfs_sbops) || (dentry->d_parent != sb->s_root))
+ return 0;
- for(i = 0; i < dentry->d_name.len; i++){
- if(!isdigit(dentry->d_name.name[i]))
- return(0);
+ for (i = 0; i < dentry->d_name.len; i++) {
+ if (!isdigit(dentry->d_name.name[i]))
+ return 0;
}
- return(1);
+ return 1;
}
static char *dentry_name(struct dentry *dentry, int extra)
@@ -70,8 +71,8 @@ static char *dentry_name(struct dentry *dentry, int extra)
len = 0;
parent = dentry;
- while(parent->d_parent != parent){
- if(is_pid(parent))
+ while (parent->d_parent != parent) {
+ if (is_pid(parent))
len += strlen("pid") + 1;
else len += parent->d_name.len + 1;
parent = parent->d_parent;
@@ -80,12 +81,13 @@ static char *dentry_name(struct dentry *dentry, int extra)
root = "proc";
len += strlen(root);
name = kmalloc(len + extra + 1, GFP_KERNEL);
- if(name == NULL) return(NULL);
+ if (name == NULL)
+ return NULL;
name[len] = '\0';
parent = dentry;
- while(parent->d_parent != parent){
- if(is_pid(parent)){
+ while (parent->d_parent != parent) {
+ if (is_pid(parent)) {
seg_name = "pid";
seg_len = strlen("pid");
}
@@ -100,27 +102,25 @@ static char *dentry_name(struct dentry *dentry, int extra)
parent = parent->d_parent;
}
strncpy(name, root, strlen(root));
- return(name);
+ return name;
}
-struct dentry_operations hppfs_dentry_ops = {
-};
-
static int file_removed(struct dentry *dentry, const char *file)
{
char *host_file;
int extra, fd;
extra = 0;
- if(file != NULL) extra += strlen(file) + 1;
+ if (file != NULL)
+ extra += strlen(file) + 1;
host_file = dentry_name(dentry, extra + strlen("/remove"));
- if(host_file == NULL){
- printk("file_removed : allocation failed\n");
- return(-ENOMEM);
+ if (host_file == NULL) {
+ printk(KERN_ERR "file_removed : allocation failed\n");
+ return -ENOMEM;
}
- if(file != NULL){
+ if (file != NULL) {
strcat(host_file, "/");
strcat(host_file, file);
}
@@ -128,45 +128,11 @@ static int file_removed(struct dentry *dentry, const char *file)
fd = os_open_file(host_file, of_read(OPENFLAGS()), 0);
kfree(host_file);
- if(fd > 0){
+ if (fd > 0) {
os_close_file(fd);
- return(1);
- }
- return(0);
-}
-
-static void hppfs_read_inode(struct inode *ino)
-{
- struct inode *proc_ino;
-
- if(HPPFS_I(ino)->proc_dentry == NULL)
- return;
-
- proc_ino = HPPFS_I(ino)->proc_dentry->d_inode;
- ino->i_uid = proc_ino->i_uid;
- ino->i_gid = proc_ino->i_gid;
- ino->i_atime = proc_ino->i_atime;
- ino->i_mtime = proc_ino->i_mtime;
- ino->i_ctime = proc_ino->i_ctime;
- ino->i_ino = proc_ino->i_ino;
- ino->i_mode = proc_ino->i_mode;
- ino->i_nlink = proc_ino->i_nlink;
- ino->i_size = proc_ino->i_size;
- ino->i_blocks = proc_ino->i_blocks;
-}
-
-static struct inode *hppfs_iget(struct super_block *sb)
-{
- struct inode *inode;
-
- inode = iget_locked(sb, 0);
- if (!inode)
- return ERR_PTR(-ENOMEM);
- if (inode->i_state & I_NEW) {
- hppfs_read_inode(inode);
- unlock_new_inode(inode);
+ return 1;
}
- return inode;
+ return 0;
}
static struct dentry *hppfs_lookup(struct inode *ino, struct dentry *dentry,
@@ -177,55 +143,45 @@ static struct dentry *hppfs_lookup(struct inode *ino, struct dentry *dentry,
int err, deleted;
deleted = file_removed(dentry, NULL);
- if(deleted < 0)
- return(ERR_PTR(deleted));
- else if(deleted)
- return(ERR_PTR(-ENOENT));
+ if (deleted < 0)
+ return ERR_PTR(deleted);
+ else if (deleted)
+ return ERR_PTR(-ENOENT);
err = -ENOMEM;
parent = HPPFS_I(ino)->proc_dentry;
mutex_lock(&parent->d_inode->i_mutex);
proc_dentry = d_lookup(parent, &dentry->d_name);
- if(proc_dentry == NULL){
+ if (proc_dentry == NULL) {
proc_dentry = d_alloc(parent, &dentry->d_name);
- if(proc_dentry == NULL){
+ if (proc_dentry == NULL) {
mutex_unlock(&parent->d_inode->i_mutex);
goto out;
}
new = (*parent->d_inode->i_op->lookup)(parent->d_inode,
proc_dentry, NULL);
- if(new){
+ if (new) {
dput(proc_dentry);
proc_dentry = new;
}
}
mutex_unlock(&parent->d_inode->i_mutex);
- if(IS_ERR(proc_dentry))
- return(proc_dentry);
+ if (IS_ERR(proc_dentry))
+ return proc_dentry;
- inode = hppfs_iget(ino->i_sb);
- if (IS_ERR(inode)) {
- err = PTR_ERR(inode);
+ err = -ENOMEM;
+ inode = get_inode(ino->i_sb, proc_dentry);
+ if (!inode)
goto out_dput;
- }
-
- err = init_inode(inode, proc_dentry);
- if(err)
- goto out_put;
-
- hppfs_read_inode(inode);
d_add(dentry, inode);
- dentry->d_op = &hppfs_dentry_ops;
- return(NULL);
+ return NULL;
- out_put:
- iput(inode);
out_dput:
dput(proc_dentry);
out:
- return(ERR_PTR(err));
+ return ERR_PTR(err);
}
static const struct inode_operations hppfs_file_iops = {
@@ -239,15 +195,16 @@ static ssize_t read_proc(struct file *file, char __user *buf, ssize_t count,
read = file->f_path.dentry->d_inode->i_fop->read;
- if(!is_user)
+ if (!is_user)
set_fs(KERNEL_DS);
n = (*read)(file, buf, count, &file->f_pos);
- if(!is_user)
+ if (!is_user)
set_fs(USER_DS);
- if(ppos) *ppos = file->f_pos;
+ if (ppos)
+ *ppos = file->f_pos;
return n;
}
@@ -259,24 +216,23 @@ static ssize_t hppfs_read_file(int fd, char __user *buf, ssize_t count)
n = -ENOMEM;
new_buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
- if(new_buf == NULL){
- printk("hppfs_read_file : kmalloc failed\n");
+ if (new_buf == NULL) {
+ printk(KERN_ERR "hppfs_read_file : kmalloc failed\n");
goto out;
}
n = 0;
- while(count > 0){
+ while (count > 0) {
cur = min_t(ssize_t, count, PAGE_SIZE);
err = os_read_file(fd, new_buf, cur);
- if(err < 0){
- printk("hppfs_read : read failed, errno = %d\n",
- err);
+ if (err < 0) {
+ printk(KERN_ERR "hppfs_read : read failed, "
+ "errno = %d\n", err);
n = err;
goto out_free;
- }
- else if(err == 0)
+ } else if (err == 0)
break;
- if(copy_to_user(buf, new_buf, err)){
+ if (copy_to_user(buf, new_buf, err)) {
n = -EFAULT;
goto out_free;
}
@@ -297,35 +253,36 @@ static ssize_t hppfs_read(struct file *file, char __user *buf, size_t count,
loff_t off;
int err;
- if(hppfs->contents != NULL){
- if(*ppos >= hppfs->len) return(0);
+ if (hppfs->contents != NULL) {
+ if (*ppos >= hppfs->len)
+ return 0;
data = hppfs->contents;
off = *ppos;
- while(off >= sizeof(data->contents)){
+ while (off >= sizeof(data->contents)) {
data = list_entry(data->list.next, struct hppfs_data,
list);
off -= sizeof(data->contents);
}
- if(off + count > hppfs->len)
+ if (off + count > hppfs->len)
count = hppfs->len - off;
copy_to_user(buf, &data->contents[off], count);
*ppos += count;
- }
- else if(hppfs->host_fd != -1){
+ } else if (hppfs->host_fd != -1) {
err = os_seek_file(hppfs->host_fd, *ppos);
- if(err){
- printk("hppfs_read : seek failed, errno = %d\n", err);
- return(err);
+ if (err) {
+ printk(KERN_ERR "hppfs_read : seek failed, "
+ "errno = %d\n", err);
+ return err;
}
count = hppfs_read_file(hppfs->host_fd, buf, count);
- if(count > 0)
+ if (count > 0)
*ppos += count;
}
else count = read_proc(hppfs->proc_file, buf, count, ppos, 1);
- return(count);
+ return count;
}
static ssize_t hppfs_write(struct file *file, const char __user *buf, size_t len,
@@ -342,7 +299,7 @@ static ssize_t hppfs_write(struct file *file, const char __user *buf, size_t len
err = (*write)(proc_file, buf, len, &proc_file->f_pos);
file->f_pos = proc_file->f_pos;
- return(err);
+ return err;
}
static int open_host_sock(char *host_file, int *filter_out)
@@ -354,13 +311,13 @@ static int open_host_sock(char *host_file, int *filter_out)
strcpy(end, "/rw");
*filter_out = 1;
fd = os_connect_socket(host_file);
- if(fd > 0)
- return(fd);
+ if (fd > 0)
+ return fd;
strcpy(end, "/r");
*filter_out = 0;
fd = os_connect_socket(host_file);
- return(fd);
+ return fd;
}
static void free_contents(struct hppfs_data *head)
@@ -368,9 +325,10 @@ static void free_contents(struct hppfs_data *head)
struct hppfs_data *data;
struct list_head *ele, *next;
- if(head == NULL) return;
+ if (head == NULL)
+ return;
- list_for_each_safe(ele, next, &head->list){
+ list_for_each_safe(ele, next, &head->list) {
data = list_entry(ele, struct hppfs_data, list);
kfree(data);
}
@@ -387,8 +345,8 @@ static struct hppfs_data *hppfs_get_data(int fd, int filter,
err = -ENOMEM;
data = kmalloc(sizeof(*data), GFP_KERNEL);
- if(data == NULL){
- printk("hppfs_get_data : head allocation failed\n");
+ if (data == NULL) {
+ printk(KERN_ERR "hppfs_get_data : head allocation failed\n");
goto failed;
}
@@ -397,36 +355,36 @@ static struct hppfs_data *hppfs_get_data(int fd, int filter,
head = data;
*size_out = 0;
- if(filter){
- while((n = read_proc(proc_file, data->contents,
+ if (filter) {
+ while ((n = read_proc(proc_file, data->contents,
sizeof(data->contents), NULL, 0)) > 0)
os_write_file(fd, data->contents, n);
err = os_shutdown_socket(fd, 0, 1);
- if(err){
- printk("hppfs_get_data : failed to shut down "
+ if (err) {
+ printk(KERN_ERR "hppfs_get_data : failed to shut down "
"socket\n");
goto failed_free;
}
}
- while(1){
+ while (1) {
n = os_read_file(fd, data->contents, sizeof(data->contents));
- if(n < 0){
+ if (n < 0) {
err = n;
- printk("hppfs_get_data : read failed, errno = %d\n",
- err);
+ printk(KERN_ERR "hppfs_get_data : read failed, "
+ "errno = %d\n", err);
goto failed_free;
- }
- else if(n == 0)
+ } else if (n == 0)
break;
*size_out += n;
- if(n < sizeof(data->contents))
+ if (n < sizeof(data->contents))
break;
new = kmalloc(sizeof(*data), GFP_KERNEL);
- if(new == 0){
- printk("hppfs_get_data : data allocation failed\n");
+ if (new == 0) {
+ printk(KERN_ERR "hppfs_get_data : data allocation "
+ "failed\n");
err = -ENOMEM;
goto failed_free;
}
@@ -435,12 +393,12 @@ static struct hppfs_data *hppfs_get_data(int fd, int filter,
list_add(&new->list, &data->list);
data = new;
}
- return(head);
+ return head;
failed_free:
free_contents(head);
failed:
- return(ERR_PTR(err));
+ return ERR_PTR(err);
}
static struct hppfs_private *hppfs_data(void)
@@ -448,77 +406,79 @@ static struct hppfs_private *hppfs_data(void)
struct hppfs_private *data;
data = kmalloc(sizeof(*data), GFP_KERNEL);
- if(data == NULL)
- return(data);
+ if (data == NULL)
+ return data;
*data = ((struct hppfs_private ) { .host_fd = -1,
.len = -1,
.contents = NULL } );
- return(data);
+ return data;
}
static int file_mode(int fmode)
{
- if(fmode == (FMODE_READ | FMODE_WRITE))
- return(O_RDWR);
- if(fmode == FMODE_READ)
- return(O_RDONLY);
- if(fmode == FMODE_WRITE)
- return(O_WRONLY);
- return(0);
+ if (fmode == (FMODE_READ | FMODE_WRITE))
+ return O_RDWR;
+ if (fmode == FMODE_READ)
+ return O_RDONLY;
+ if (fmode == FMODE_WRITE)
+ return O_WRONLY;
+ return 0;
}
static int hppfs_open(struct inode *inode, struct file *file)
{
struct hppfs_private *data;
struct dentry *proc_dentry;
+ struct vfsmount *proc_mnt;
char *host_file;
int err, fd, type, filter;
err = -ENOMEM;
data = hppfs_data();
- if(data == NULL)
+ if (data == NULL)
goto out;
host_file = dentry_name(file->f_path.dentry, strlen("/rw"));
- if(host_file == NULL)
+ if (host_file == NULL)
goto out_free2;
proc_dentry = HPPFS_I(inode)->proc_dentry;
+ proc_mnt = inode->i_sb->s_fs_info;
/* XXX This isn't closed anywhere */
- data->proc_file = dentry_open(dget(proc_dentry), NULL,
+ data->proc_file = dentry_open(dget(proc_dentry), mntget(proc_mnt),
file_mode(file->f_mode));
err = PTR_ERR(data->proc_file);
- if(IS_ERR(data->proc_file))
+ if (IS_ERR(data->proc_file))
goto out_free1;
type = os_file_type(host_file);
- if(type == OS_TYPE_FILE){
+ if (type == OS_TYPE_FILE) {
fd = os_open_file(host_file, of_read(OPENFLAGS()), 0);
- if(fd >= 0)
+ if (fd >= 0)
data->host_fd = fd;
- else printk("hppfs_open : failed to open '%s', errno = %d\n",
- host_file, -fd);
+ else
+ printk(KERN_ERR "hppfs_open : failed to open '%s', "
+ "errno = %d\n", host_file, -fd);
data->contents = NULL;
- }
- else if(type == OS_TYPE_DIR){
+ } else if (type == OS_TYPE_DIR) {
fd = open_host_sock(host_file, &filter);
- if(fd > 0){
+ if (fd > 0) {
data->contents = hppfs_get_data(fd, filter,
data->proc_file,
file, &data->len);
- if(!IS_ERR(data->contents))
+ if (!IS_ERR(data->contents))
data->host_fd = fd;
- }
- else printk("hppfs_open : failed to open a socket in "
- "'%s', errno = %d\n", host_file, -fd);
+ } else
+ printk(KERN_ERR "hppfs_open : failed to open a socket "
+ "in '%s', errno = %d\n", host_file, -fd);
}
kfree(host_file);
file->private_data = data;
- return(0);
+ return 0;
out_free1:
kfree(host_file);
@@ -526,34 +486,36 @@ static int hppfs_open(struct inode *inode, struct file *file)
free_contents(data->contents);
kfree(data);
out:
- return(err);
+ return err;
}
static int hppfs_dir_open(struct inode *inode, struct file *file)
{
struct hppfs_private *data;
struct dentry *proc_dentry;
+ struct vfsmount *proc_mnt;
int err;
err = -ENOMEM;
data = hppfs_data();
- if(data == NULL)
+ if (data == NULL)
goto out;
proc_dentry = HPPFS_I(inode)->proc_dentry;
- data->proc_file = dentry_open(dget(proc_dentry), NULL,
+ proc_mnt = inode->i_sb->s_fs_info;
+ data->proc_file = dentry_open(dget(proc_dentry), mntget(proc_mnt),
file_mode(file->f_mode));
err = PTR_ERR(data->proc_file);
- if(IS_ERR(data->proc_file))
+ if (IS_ERR(data->proc_file))
goto out_free;
file->private_data = data;
- return(0);
+ return 0;
out_free:
kfree(data);
out:
- return(err);
+ return err;
}
static loff_t hppfs_llseek(struct file *file, loff_t off, int where)
@@ -564,13 +526,13 @@ static loff_t hppfs_llseek(struct file *file, loff_t off, int where)
loff_t ret;
llseek = proc_file->f_path.dentry->d_inode->i_fop->llseek;
- if(llseek != NULL){
+ if (llseek != NULL) {
ret = (*llseek)(proc_file, off, where);
- if(ret < 0)
- return(ret);
+ if (ret < 0)
+ return ret;
}
- return(default_llseek(file, off, where));
+ return default_llseek(file, off, where);
}
static const struct file_operations hppfs_file_fops = {
@@ -592,11 +554,11 @@ static int hppfs_filldir(void *d, const char *name, int size,
{
struct hppfs_dirent *dirent = d;
- if(file_removed(dirent->dentry, name))
- return(0);
+ if (file_removed(dirent->dentry, name))
+ return 0;
- return((*dirent->filldir)(dirent->vfs_dirent, name, size, offset,
- inode, type));
+ return (*dirent->filldir)(dirent->vfs_dirent, name, size, offset,
+ inode, type);
}
static int hppfs_readdir(struct file *file, void *ent, filldir_t filldir)
@@ -607,7 +569,8 @@ static int hppfs_readdir(struct file *file, void *ent, filldir_t filldir)
struct hppfs_dirent dirent = ((struct hppfs_dirent)
{ .vfs_dirent = ent,
.filldir = filldir,
- .dentry = file->f_path.dentry } );
+ .dentry = file->f_path.dentry
+ });
int err;
readdir = proc_file->f_path.dentry->d_inode->i_fop->readdir;
@@ -616,12 +579,12 @@ static int hppfs_readdir(struct file *file, void *ent, filldir_t filldir)
err = (*readdir)(proc_file, &dirent, hppfs_filldir);
file->f_pos = proc_file->f_pos;
- return(err);
+ return err;
}
static int hppfs_fsync(struct file *file, struct dentry *dentry, int datasync)
{
- return(0);
+ return 0;
}
static const struct file_operations hppfs_dir_fops = {
@@ -639,7 +602,7 @@ static int hppfs_statfs(struct dentry *dentry, struct kstatfs *sf)
sf->f_files = 0;
sf->f_ffree = 0;
sf->f_type = HPPFS_SUPER_MAGIC;
- return(0);
+ return 0;
}
static struct inode *hppfs_alloc_inode(struct super_block *sb)
@@ -647,12 +610,12 @@ static struct inode *hppfs_alloc_inode(struct super_block *sb)
struct hppfs_inode_info *hi;
hi = kmalloc(sizeof(*hi), GFP_KERNEL);
- if(hi == NULL)
- return(NULL);
+ if (!hi)
+ return NULL;
- *hi = ((struct hppfs_inode_info) { .proc_dentry = NULL });
+ hi->proc_dentry = NULL;
inode_init_once(&hi->vfs_inode);
- return(&hi->vfs_inode);
+ return &hi->vfs_inode;
}
void hppfs_delete_inode(struct inode *ino)
@@ -665,21 +628,31 @@ static void hppfs_destroy_inode(struct inode *inode)
kfree(HPPFS_I(inode));
}
+static void hppfs_put_super(struct super_block *sb)
+{
+ mntput(sb->s_fs_info);
+}
+
static const struct super_operations hppfs_sbops = {
.alloc_inode = hppfs_alloc_inode,
.destroy_inode = hppfs_destroy_inode,
.delete_inode = hppfs_delete_inode,
.statfs = hppfs_statfs,
+ .put_super = hppfs_put_super,
};
-static int hppfs_readlink(struct dentry *dentry, char __user *buffer, int buflen)
+static int hppfs_readlink(struct dentry *dentry, char __user *buffer,
+ int buflen)
{
struct file *proc_file;
struct dentry *proc_dentry;
+ struct vfsmount *proc_mnt;
int ret;
proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry;
- proc_file = dentry_open(dget(proc_dentry), NULL, O_RDONLY);
+ proc_mnt = dentry->d_sb->s_fs_info;
+
+ proc_file = dentry_open(dget(proc_dentry), mntget(proc_mnt), O_RDONLY);
if (IS_ERR(proc_file))
return PTR_ERR(proc_file);
@@ -694,10 +667,13 @@ static void* hppfs_follow_link(struct dentry *dentry, struct nameidata *nd)
{
struct file *proc_file;
struct dentry *proc_dentry;
+ struct vfsmount *proc_mnt;
void *ret;
proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry;
- proc_file = dentry_open(dget(proc_dentry), NULL, O_RDONLY);
+ proc_mnt = dentry->d_sb->s_fs_info;
+
+ proc_file = dentry_open(dget(proc_dentry), mntget(proc_mnt), O_RDONLY);
if (IS_ERR(proc_file))
return proc_file;
@@ -717,70 +693,72 @@ static const struct inode_operations hppfs_link_iops = {
.follow_link = hppfs_follow_link,
};
-static int init_inode(struct inode *inode, struct dentry *dentry)
+static struct inode *get_inode(struct super_block *sb, struct dentry *dentry)
{
- if(S_ISDIR(dentry->d_inode->i_mode)){
+ struct inode *proc_ino = dentry->d_inode;
+ struct inode *inode = new_inode(sb);
+
+ if (!inode)
+ return ERR_PTR(-ENOMEM);
+
+ if (S_ISDIR(dentry->d_inode->i_mode)) {
inode->i_op = &hppfs_dir_iops;
inode->i_fop = &hppfs_dir_fops;
- }
- else if(S_ISLNK(dentry->d_inode->i_mode)){
+ } else if (S_ISLNK(dentry->d_inode->i_mode)) {
inode->i_op = &hppfs_link_iops;
inode->i_fop = &hppfs_file_fops;
- }
- else {
+ } else {
inode->i_op = &hppfs_file_iops;
inode->i_fop = &hppfs_file_fops;
}
HPPFS_I(inode)->proc_dentry = dentry;
- return(0);
+ inode->i_uid = proc_ino->i_uid;
+ inode->i_gid = proc_ino->i_gid;
+ inode->i_atime = proc_ino->i_atime;
+ inode->i_mtime = proc_ino->i_mtime;
+ inode->i_ctime = proc_ino->i_ctime;
+ inode->i_ino = proc_ino->i_ino;
+ inode->i_mode = proc_ino->i_mode;
+ inode->i_nlink = proc_ino->i_nlink;
+ inode->i_size = proc_ino->i_size;
+ inode->i_blocks = proc_ino->i_blocks;
+
+ return 0;
}
static int hppfs_fill_super(struct super_block *sb, void *d, int silent)
{
struct inode *root_inode;
- struct file_system_type *procfs;
- struct super_block *proc_sb;
- int err;
+ struct vfsmount *proc_mnt;
+ int err = -ENOENT;
- err = -ENOENT;
- procfs = get_fs_type("proc");
- if(procfs == NULL)
+ proc_mnt = do_kern_mount("proc", 0, "proc", NULL);
+ if (IS_ERR(proc_mnt))
goto out;
- if(list_empty(&procfs->fs_supers))
- goto out;
-
- proc_sb = list_entry(procfs->fs_supers.next, struct super_block,
- s_instances);
-
sb->s_blocksize = 1024;
sb->s_blocksize_bits = 10;
sb->s_magic = HPPFS_SUPER_MAGIC;
sb->s_op = &hppfs_sbops;
-
- root_inode = hppfs_iget(sb);
- if (IS_ERR(root_inode)) {
- err = PTR_ERR(root_inode);
- goto out;
- }
-
- err = init_inode(root_inode, proc_sb->s_root);
- if(err)
- goto out_put;
+ sb->s_fs_info = proc_mnt;
err = -ENOMEM;
- sb->s_root = d_alloc_root(root_inode);
- if(sb->s_root == NULL)
- goto out_put;
+ root_inode = get_inode(sb, proc_mnt->mnt_sb->s_root);
+ if (!root_inode)
+ goto out_mntput;
- hppfs_read_inode(root_inode);
+ sb->s_root = d_alloc_root(root_inode);
+ if (!sb->s_root)
+ goto out_iput;
- return(0);
+ return 0;
- out_put:
+ out_iput:
iput(root_inode);
+ out_mntput:
+ mntput(proc_mnt);
out:
return(err);
}
@@ -802,7 +780,7 @@ static struct file_system_type hppfs_type = {
static int __init init_hppfs(void)
{
- return(register_filesystem(&hppfs_type));
+ return register_filesystem(&hppfs_type);
}
static void __exit exit_hppfs(void)
@@ -813,14 +791,3 @@ static void __exit exit_hppfs(void)
module_init(init_hppfs)
module_exit(exit_hppfs)
MODULE_LICENSE("GPL");
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index eee9487ae47f..6846785fe904 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -954,7 +954,7 @@ struct file *hugetlb_file_setup(const char *name, size_t size)
FMODE_WRITE | FMODE_READ,
&hugetlbfs_file_operations);
if (!file)
- goto out_inode;
+ goto out_dentry; /* inode is already attached */
return file;
diff --git a/fs/namei.c b/fs/namei.c
index 6b7a0eef4090..8cf9bb9c2fc0 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -106,7 +106,7 @@
* any extra contention...
*/
-static int link_path_walk(const char *name, struct nameidata *nd);
+static int __link_path_walk(const char *name, struct nameidata *nd);
/* In order to reduce some races, while at the same time doing additional
* checking and hopefully speeding things up, we copy filenames to the
@@ -563,6 +563,37 @@ walk_init_root(const char *name, struct nameidata *nd)
return 1;
}
+/*
+ * Wrapper to retry pathname resolution whenever the underlying
+ * file system returns an ESTALE.
+ *
+ * Retry the whole path once, forcing real lookup requests
+ * instead of relying on the dcache.
+ */
+static __always_inline int link_path_walk(const char *name, struct nameidata *nd)
+{
+ struct path save = nd->path;
+ int result;
+
+ /* make sure the stuff we saved doesn't go away */
+ dget(save.dentry);
+ mntget(save.mnt);
+
+ result = __link_path_walk(name, nd);
+ if (result == -ESTALE) {
+ /* nd->path had been dropped */
+ nd->path = save;
+ dget(nd->path.dentry);
+ mntget(nd->path.mnt);
+ nd->flags |= LOOKUP_REVAL;
+ result = __link_path_walk(name, nd);
+ }
+
+ path_put(&save);
+
+ return result;
+}
+
static __always_inline int __vfs_follow_link(struct nameidata *nd, const char *link)
{
int res = 0;
@@ -1020,36 +1051,6 @@ return_err:
return err;
}
-/*
- * Wrapper to retry pathname resolution whenever the underlying
- * file system returns an ESTALE.
- *
- * Retry the whole path once, forcing real lookup requests
- * instead of relying on the dcache.
- */
-static int link_path_walk(const char *name, struct nameidata *nd)
-{
- struct nameidata save = *nd;
- int result;
-
- /* make sure the stuff we saved doesn't go away */
- dget(save.path.dentry);
- mntget(save.path.mnt);
-
- result = __link_path_walk(name, nd);
- if (result == -ESTALE) {
- *nd = save;
- dget(nd->path.dentry);
- mntget(nd->path.mnt);
- nd->flags |= LOOKUP_REVAL;
- result = __link_path_walk(name, nd);
- }
-
- path_put(&save.path);
-
- return result;
-}
-
static int path_walk(const char *name, struct nameidata *nd)
{
current->total_link_count = 0;
diff --git a/fs/open.c b/fs/open.c
index 54198538b67e..a4b12022edaa 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -903,6 +903,18 @@ struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags)
int error;
struct file *f;
+ /*
+ * We must always pass in a valid mount pointer. Historically
+ * callers got away with not passing it, but we must enforce this at
+ * the earliest possible point now to avoid strange problems deep in the
+ * filesystem stack.
+ */
+ if (!mnt) {
+ printk(KERN_WARNING "%s called with NULL vfsmount\n", __func__);
+ dump_stack();
+ return ERR_PTR(-EINVAL);
+ }
+
error = -ENFILE;
f = get_empty_filp();
if (f == NULL) {
diff --git a/fs/pipe.c b/fs/pipe.c
index 3c185b6527bc..8be381bbcb54 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -957,13 +957,10 @@ struct file *create_write_pipe(void)
struct dentry *dentry;
struct qstr name = { .name = "" };
- f = get_empty_filp();
- if (!f)
- return ERR_PTR(-ENFILE);
err = -ENFILE;
inode = get_pipe_inode();
if (!inode)
- goto err_file;
+ goto err;
err = -ENOMEM;
dentry = d_alloc(pipe_mnt->mnt_sb->s_root, &name);
@@ -978,22 +975,24 @@ struct file *create_write_pipe(void)
*/
dentry->d_flags &= ~DCACHE_UNHASHED;
d_instantiate(dentry, inode);
- f->f_path.mnt = mntget(pipe_mnt);
- f->f_path.dentry = dentry;
+
+ err = -ENFILE;
+ f = alloc_file(pipe_mnt, dentry, FMODE_WRITE, &write_pipe_fops);
+ if (!f)
+ goto err_dentry;
f->f_mapping = inode->i_mapping;
f->f_flags = O_WRONLY;
- f->f_op = &write_pipe_fops;
- f->f_mode = FMODE_WRITE;
f->f_version = 0;
return f;
+ err_dentry:
+ dput(dentry);
err_inode:
free_pipe_info(inode);
iput(inode);
- err_file:
- put_filp(f);
+ err:
return ERR_PTR(err);
}
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index eba037b3338f..344b9b96cc56 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -191,28 +191,11 @@ static struct dentry *get_xa_file_dentry(const struct inode *inode,
dput(xadir);
if (err)
xafile = ERR_PTR(err);
- return xafile;
-}
-
-/* Opens a file pointer to the attribute associated with inode */
-static struct file *open_xa_file(const struct inode *inode, const char *name,
- int flags)
-{
- struct dentry *xafile;
- struct file *fp;
-
- xafile = get_xa_file_dentry(inode, name, flags);
- if (IS_ERR(xafile))
- return ERR_PTR(PTR_ERR(xafile));
else if (!xafile->d_inode) {
dput(xafile);
- return ERR_PTR(-ENODATA);
+ xafile = ERR_PTR(-ENODATA);
}
-
- fp = dentry_open(xafile, NULL, O_RDWR);
- /* dentry_open dputs the dentry if it fails */
-
- return fp;
+ return xafile;
}
/*
@@ -228,9 +211,8 @@ static struct file *open_xa_file(const struct inode *inode, const char *name,
* we're called with i_mutex held, so there are no worries about the directory
* changing underneath us.
*/
-static int __xattr_readdir(struct file *filp, void *dirent, filldir_t filldir)
+static int __xattr_readdir(struct inode *inode, void *dirent, filldir_t filldir)
{
- struct inode *inode = filp->f_path.dentry->d_inode;
struct cpu_key pos_key; /* key of current position in the directory (key of directory entry) */
INITIALIZE_PATH(path_to_entry);
struct buffer_head *bh;
@@ -374,23 +356,16 @@ static int __xattr_readdir(struct file *filp, void *dirent, filldir_t filldir)
*
*/
static
-int xattr_readdir(struct file *file, filldir_t filler, void *buf)
+int xattr_readdir(struct inode *inode, filldir_t filler, void *buf)
{
- struct inode *inode = file->f_path.dentry->d_inode;
- int res = -ENOTDIR;
- if (!file->f_op || !file->f_op->readdir)
- goto out;
+ int res = -ENOENT;
mutex_lock_nested(&inode->i_mutex, I_MUTEX_XATTR);
-// down(&inode->i_zombie);
- res = -ENOENT;
if (!IS_DEADDIR(inode)) {
lock_kernel();
- res = __xattr_readdir(file, buf, filler);
+ res = __xattr_readdir(inode, buf, filler);
unlock_kernel();
}
-// up(&inode->i_zombie);
mutex_unlock(&inode->i_mutex);
- out:
return res;
}
@@ -442,7 +417,7 @@ reiserfs_xattr_set(struct inode *inode, const char *name, const void *buffer,
size_t buffer_size, int flags)
{
int err = 0;
- struct file *fp;
+ struct dentry *dentry;
struct page *page;
char *data;
struct address_space *mapping;
@@ -460,18 +435,18 @@ reiserfs_xattr_set(struct inode *inode, const char *name, const void *buffer,
xahash = xattr_hash(buffer, buffer_size);
open_file:
- fp = open_xa_file(inode, name, flags);
- if (IS_ERR(fp)) {
- err = PTR_ERR(fp);
+ dentry = get_xa_file_dentry(inode, name, flags);
+ if (IS_ERR(dentry)) {
+ err = PTR_ERR(dentry);
goto out;
}
- xinode = fp->f_path.dentry->d_inode;
+ xinode = dentry->d_inode;
REISERFS_I(inode)->i_flags |= i_has_xattr_dir;
/* we need to copy it off.. */
if (xinode->i_nlink > 1) {
- fput(fp);
+ dput(dentry);
err = reiserfs_xattr_del(inode, name);
if (err < 0)
goto out;
@@ -485,7 +460,7 @@ reiserfs_xattr_set(struct inode *inode, const char *name, const void *buffer,
newattrs.ia_size = buffer_size;
newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
mutex_lock_nested(&xinode->i_mutex, I_MUTEX_XATTR);
- err = notify_change(fp->f_path.dentry, &newattrs);
+ err = notify_change(dentry, &newattrs);
if (err)
goto out_filp;
@@ -518,15 +493,14 @@ reiserfs_xattr_set(struct inode *inode, const char *name, const void *buffer,
rxh->h_hash = cpu_to_le32(xahash);
}
- err = reiserfs_prepare_write(fp, page, page_offset,
+ err = reiserfs_prepare_write(NULL, page, page_offset,
page_offset + chunk + skip);
if (!err) {
if (buffer)
memcpy(data + skip, buffer + buffer_pos, chunk);
- err =
- reiserfs_commit_write(fp, page, page_offset,
- page_offset + chunk +
- skip);
+ err = reiserfs_commit_write(NULL, page, page_offset,
+ page_offset + chunk +
+ skip);
}
unlock_page(page);
reiserfs_put_page(page);
@@ -548,7 +522,7 @@ reiserfs_xattr_set(struct inode *inode, const char *name, const void *buffer,
out_filp:
mutex_unlock(&xinode->i_mutex);
- fput(fp);
+ dput(dentry);
out:
return err;
@@ -562,7 +536,7 @@ reiserfs_xattr_get(const struct inode *inode, const char *name, void *buffer,
size_t buffer_size)
{
ssize_t err = 0;
- struct file *fp;
+ struct dentry *dentry;
size_t isize;
size_t file_pos = 0;
size_t buffer_pos = 0;
@@ -578,13 +552,13 @@ reiserfs_xattr_get(const struct inode *inode, const char *name, void *buffer,
if (get_inode_sd_version(inode) == STAT_DATA_V1)
return -EOPNOTSUPP;
- fp = open_xa_file(inode, name, FL_READONLY);
- if (IS_ERR(fp)) {
- err = PTR_ERR(fp);
+ dentry = get_xa_file_dentry(inode, name, FL_READONLY);
+ if (IS_ERR(dentry)) {
+ err = PTR_ERR(dentry);
goto out;
}
- xinode = fp->f_path.dentry->d_inode;
+ xinode = dentry->d_inode;
isize = xinode->i_size;
REISERFS_I(inode)->i_flags |= i_has_xattr_dir;
@@ -652,7 +626,7 @@ reiserfs_xattr_get(const struct inode *inode, const char *name, void *buffer,
}
out_dput:
- fput(fp);
+ dput(dentry);
out:
return err;
@@ -742,7 +716,6 @@ reiserfs_delete_xattrs_filler(void *buf, const char *name, int namelen,
/* This is called w/ inode->i_mutex downed */
int reiserfs_delete_xattrs(struct inode *inode)
{
- struct file *fp;
struct dentry *dir, *root;
int err = 0;
@@ -763,15 +736,8 @@ int reiserfs_delete_xattrs(struct inode *inode)
return 0;
}
- fp = dentry_open(dir, NULL, O_RDWR);
- if (IS_ERR(fp)) {
- err = PTR_ERR(fp);
- /* dentry_open dputs the dentry if it fails */
- goto out;
- }
-
lock_kernel();
- err = xattr_readdir(fp, reiserfs_delete_xattrs_filler, dir);
+ err = xattr_readdir(dir->d_inode, reiserfs_delete_xattrs_filler, dir);
if (err) {
unlock_kernel();
goto out_dir;
@@ -791,7 +757,7 @@ int reiserfs_delete_xattrs(struct inode *inode)
unlock_kernel();
out_dir:
- fput(fp);
+ dput(dir);
out:
if (!err)
@@ -833,7 +799,6 @@ reiserfs_chown_xattrs_filler(void *buf, const char *name, int namelen,
int reiserfs_chown_xattrs(struct inode *inode, struct iattr *attrs)
{
- struct file *fp;
struct dentry *dir;
int err = 0;
struct reiserfs_chown_buf buf;
@@ -857,13 +822,6 @@ int reiserfs_chown_xattrs(struct inode *inode, struct iattr *attrs)
goto out;
}
- fp = dentry_open(dir, NULL, O_RDWR);
- if (IS_ERR(fp)) {
- err = PTR_ERR(fp);
- /* dentry_open dputs the dentry if it fails */
- goto out;
- }
-
lock_kernel();
attrs->ia_valid &= (ATTR_UID | ATTR_GID | ATTR_CTIME);
@@ -871,7 +829,7 @@ int reiserfs_chown_xattrs(struct inode *inode, struct iattr *attrs)
buf.attrs = attrs;
buf.inode = inode;
- err = xattr_readdir(fp, reiserfs_chown_xattrs_filler, &buf);
+ err = xattr_readdir(dir->d_inode, reiserfs_chown_xattrs_filler, &buf);
if (err) {
unlock_kernel();
goto out_dir;
@@ -881,7 +839,7 @@ int reiserfs_chown_xattrs(struct inode *inode, struct iattr *attrs)
unlock_kernel();
out_dir:
- fput(fp);
+ dput(dir);
out:
attrs->ia_valid = ia_valid;
@@ -1029,7 +987,6 @@ reiserfs_listxattr_filler(void *buf, const char *name, int namelen,
*/
ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size)
{
- struct file *fp;
struct dentry *dir;
int err = 0;
struct reiserfs_listxattr_buf buf;
@@ -1052,13 +1009,6 @@ ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size)
goto out;
}
- fp = dentry_open(dir, NULL, O_RDWR);
- if (IS_ERR(fp)) {
- err = PTR_ERR(fp);
- /* dentry_open dputs the dentry if it fails */
- goto out;
- }
-
buf.r_buf = buffer;
buf.r_size = buffer ? size : 0;
buf.r_pos = 0;
@@ -1066,7 +1016,7 @@ ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size)
REISERFS_I(dentry->d_inode)->i_flags |= i_has_xattr_dir;
- err = xattr_readdir(fp, reiserfs_listxattr_filler, &buf);
+ err = xattr_readdir(dir->d_inode, reiserfs_listxattr_filler, &buf);
if (err)
goto out_dir;
@@ -1076,7 +1026,7 @@ ssize_t reiserfs_listxattr(struct dentry * dentry, char *buffer, size_t size)
err = buf.r_pos;
out_dir:
- fput(fp);
+ dput(dir);
out:
reiserfs_read_unlock_xattr_i(dentry->d_inode);
diff --git a/fs/super.c b/fs/super.c
index d0a941a4e620..09008dbd264e 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -945,6 +945,7 @@ do_kern_mount(const char *fstype, int flags, const char *name, void *data)
put_filesystem(type);
return mnt;
}
+EXPORT_SYMBOL_GPL(do_kern_mount);
struct vfsmount *kern_mount_data(struct file_system_type *type, void *data)
{
diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h
index 174b87738714..9cf472aeb9ce 100644
--- a/include/asm-x86/pgtable.h
+++ b/include/asm-x86/pgtable.h
@@ -85,6 +85,7 @@ extern pteval_t __PAGE_KERNEL, __PAGE_KERNEL_EXEC;
#define __PAGE_KERNEL_RX (__PAGE_KERNEL_EXEC & ~_PAGE_RW)
#define __PAGE_KERNEL_EXEC_NOCACHE (__PAGE_KERNEL_EXEC | _PAGE_PCD | _PAGE_PWT)
#define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL | _PAGE_PCD | _PAGE_PWT)
+#define __PAGE_KERNEL_UC_MINUS (__PAGE_KERNEL | _PAGE_PCD)
#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RX | _PAGE_USER)
#define __PAGE_KERNEL_VSYSCALL_NOCACHE (__PAGE_KERNEL_VSYSCALL | _PAGE_PCD | _PAGE_PWT)
#define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE)
@@ -101,6 +102,7 @@ extern pteval_t __PAGE_KERNEL, __PAGE_KERNEL_EXEC;
#define PAGE_KERNEL_EXEC MAKE_GLOBAL(__PAGE_KERNEL_EXEC)
#define PAGE_KERNEL_RX MAKE_GLOBAL(__PAGE_KERNEL_RX)
#define PAGE_KERNEL_NOCACHE MAKE_GLOBAL(__PAGE_KERNEL_NOCACHE)
+#define PAGE_KERNEL_UC_MINUS MAKE_GLOBAL(__PAGE_KERNEL_UC_MINUS)
#define PAGE_KERNEL_EXEC_NOCACHE MAKE_GLOBAL(__PAGE_KERNEL_EXEC_NOCACHE)
#define PAGE_KERNEL_LARGE MAKE_GLOBAL(__PAGE_KERNEL_LARGE)
#define PAGE_KERNEL_LARGE_EXEC MAKE_GLOBAL(__PAGE_KERNEL_LARGE_EXEC)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index fed07d03364e..6a1e7afb099b 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1541,6 +1541,12 @@ static inline void idle_task_exit(void) {}
extern void sched_idle_next(void);
+#if defined(CONFIG_NO_HZ) && defined(CONFIG_SMP)
+extern void wake_up_idle_cpu(int cpu);
+#else
+static inline void wake_up_idle_cpu(int cpu) { }
+#endif
+
#ifdef CONFIG_SCHED_DEBUG
extern unsigned int sysctl_sched_latency;
extern unsigned int sysctl_sched_min_granularity;
diff --git a/kernel/relay.c b/kernel/relay.c
index 4c035a8a248c..d6204a485818 100644
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -736,7 +736,7 @@ static int relay_file_open(struct inode *inode, struct file *filp)
kref_get(&buf->kref);
filp->private_data = buf;
- return 0;
+ return nonseekable_open(inode, filp);
}
/**
@@ -1056,6 +1056,10 @@ static struct pipe_buf_operations relay_pipe_buf_ops = {
.get = generic_pipe_buf_get,
};
+static void relay_page_release(struct splice_pipe_desc *spd, unsigned int i)
+{
+}
+
/*
* subbuf_splice_actor - splice up to one subbuf's worth of data
*/
@@ -1083,6 +1087,7 @@ static int subbuf_splice_actor(struct file *in,
.partial = partial,
.flags = flags,
.ops = &relay_pipe_buf_ops,
+ .spd_release = relay_page_release,
};
if (rbuf->subbufs_produced == rbuf->subbufs_consumed)
diff --git a/kernel/sched.c b/kernel/sched.c
index 28c73f07efb2..8dcdec6fe0fe 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -1052,6 +1052,49 @@ static void resched_cpu(int cpu)
resched_task(cpu_curr(cpu));
spin_unlock_irqrestore(&rq->lock, flags);
}
+
+#ifdef CONFIG_NO_HZ
+/*
+ * When add_timer_on() enqueues a timer into the timer wheel of an
+ * idle CPU then this timer might expire before the next timer event
+ * which is scheduled to wake up that CPU. In case of a completely
+ * idle system the next event might even be infinite time into the
+ * future. wake_up_idle_cpu() ensures that the CPU is woken up and
+ * leaves the inner idle loop so the newly added timer is taken into
+ * account when the CPU goes back to idle and evaluates the timer
+ * wheel for the next timer event.
+ */
+void wake_up_idle_cpu(int cpu)
+{
+ struct rq *rq = cpu_rq(cpu);
+
+ if (cpu == smp_processor_id())
+ return;
+
+ /*
+ * This is safe, as this function is called with the timer
+ * wheel base lock of (cpu) held. When the CPU is on the way
+ * to idle and has not yet set rq->curr to idle then it will
+ * be serialized on the timer wheel base lock and take the new
+ * timer into account automatically.
+ */
+ if (rq->curr != rq->idle)
+ return;
+
+ /*
+ * We can set TIF_RESCHED on the idle task of the other CPU
+ * lockless. The worst case is that the other CPU runs the
+ * idle task through an additional NOOP schedule()
+ */
+ set_tsk_thread_flag(rq->idle, TIF_NEED_RESCHED);
+
+ /* NEED_RESCHED must be visible before we test polling */
+ smp_mb();
+ if (!tsk_is_polling(rq->idle))
+ smp_send_reschedule(cpu);
+}
+#endif
+
#else
static void __resched_task(struct task_struct *p, int tif_bit)
{
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index 278534bbca95..7f60097d443a 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -174,7 +174,7 @@ static void clocksource_check_watchdog(struct clocksource *cs)
if (watchdog)
del_timer(&watchdog_timer);
watchdog = cs;
- init_timer_deferrable(&watchdog_timer);
+ init_timer(&watchdog_timer);
watchdog_timer.function = clocksource_watchdog;
/* Reset watchdog cycles */
diff --git a/kernel/timer.c b/kernel/timer.c
index 99b00a25f88b..b024106daa70 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -451,10 +451,18 @@ void add_timer_on(struct timer_list *timer, int cpu)
spin_lock_irqsave(&base->lock, flags);
timer_set_base(timer, base);
internal_add_timer(base, timer);
+ /*
+ * Check whether the other CPU is idle and needs to be
+ * triggered to reevaluate the timer wheel when nohz is
+ * active. We are protected against the other CPU fiddling
+ * with the timer by holding the timer base lock. This also
+ * makes sure that a CPU on the way to idle can not evaluate
+ * the timer wheel.
+ */
+ wake_up_idle_cpu(cpu);
spin_unlock_irqrestore(&base->lock, flags);
}
-
/**
* mod_timer - modify a timer's timeout
* @timer: the timer to be modified
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 74c1b6b0b37b..51c9e2c01640 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -401,12 +401,20 @@ static void return_unused_surplus_pages(unsigned long unused_resv_pages)
struct page *page;
unsigned long nr_pages;
+ /*
+ * We want to release as many surplus pages as possible, spread
+ * evenly across all nodes. Iterate across all nodes until we
+ * can no longer free unreserved surplus pages. This occurs when
+ * the nodes with surplus pages have no free pages.
+ */
+ unsigned long remaining_iterations = num_online_nodes();
+
/* Uncommit the reservation */
resv_huge_pages -= unused_resv_pages;
nr_pages = min(unused_resv_pages, surplus_huge_pages);
- while (nr_pages) {
+ while (remaining_iterations-- && nr_pages) {
nid = next_node(nid, node_online_map);
if (nid == MAX_NUMNODES)
nid = first_node(node_online_map);
@@ -424,6 +432,7 @@ static void return_unused_surplus_pages(unsigned long unused_resv_pages)
surplus_huge_pages--;
surplus_huge_pages_node[nid]--;
nr_pages--;
+ remaining_iterations = num_online_nodes();
}
}
}
@@ -671,9 +680,11 @@ int hugetlb_report_node_meminfo(int nid, char *buf)
{
return sprintf(buf,
"Node %d HugePages_Total: %5u\n"
- "Node %d HugePages_Free: %5u\n",
+ "Node %d HugePages_Free: %5u\n"
+ "Node %d HugePages_Surp: %5u\n",
nid, nr_huge_pages_node[nid],
- nid, free_huge_pages_node[nid]);
+ nid, free_huge_pages_node[nid],
+ nid, surplus_huge_pages_node[nid]);
}
/* Return the number pages of memory we physically have, in PAGE_SIZE units. */
diff --git a/mm/slab.c b/mm/slab.c
index bb4070e1079f..04b308c3bc54 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1481,7 +1481,7 @@ void __init kmem_cache_init(void)
list_add(&cache_cache.next, &cache_chain);
cache_cache.colour_off = cache_line_size();
cache_cache.array[smp_processor_id()] = &initarray_cache.cache;
- cache_cache.nodelists[node] = &initkmem_list3[CACHE_CACHE];
+ cache_cache.nodelists[node] = &initkmem_list3[CACHE_CACHE + node];
/*
* struct kmem_cache size depends on nr_node_ids, which
@@ -1602,7 +1602,7 @@ void __init kmem_cache_init(void)
int nid;
for_each_online_node(nid) {
- init_list(&cache_cache, &initkmem_list3[CACHE_CACHE], nid);
+ init_list(&cache_cache, &initkmem_list3[CACHE_CACHE + nid], nid);
init_list(malloc_sizes[INDEX_AC].cs_cachep,
&initkmem_list3[SIZE_AC + nid], nid);
diff --git a/mm/slub.c b/mm/slub.c
index ca71d5b81e4a..b72bc98e2dc1 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2685,6 +2685,7 @@ void kfree(const void *x)
}
EXPORT_SYMBOL(kfree);
+#if defined(SLUB_DEBUG) || defined(CONFIG_SLABINFO)
static unsigned long count_partial(struct kmem_cache_node *n)
{
unsigned long flags;
@@ -2697,6 +2698,7 @@ static unsigned long count_partial(struct kmem_cache_node *n)
spin_unlock_irqrestore(&n->list_lock, flags);
return x;
}
+#endif
/*
* kmem_cache_shrink removes empty slabs from the partial lists and sorts
diff --git a/mm/tiny-shmem.c b/mm/tiny-shmem.c
index f0f55875dd6a..ae532f501943 100644
--- a/mm/tiny-shmem.c
+++ b/mm/tiny-shmem.c
@@ -88,6 +88,8 @@ struct file *shmem_file_setup(char *name, loff_t size, unsigned long flags)
close_file:
put_filp(file);
+ return ERR_PTR(error);
+
put_dentry:
dput(dentry);
put_memory:
diff --git a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
index 971271602dd0..c22d6b6f2db4 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
@@ -322,15 +322,6 @@ next_sge:
ctxt->direction = DMA_FROM_DEVICE;
clear_bit(RDMACTXT_F_READ_DONE, &ctxt->flags);
clear_bit(RDMACTXT_F_LAST_CTXT, &ctxt->flags);
- if ((ch+1)->rc_discrim == 0) {
- /*
- * Checked in sq_cq_reap to see if we need to
- * be enqueued
- */
- set_bit(RDMACTXT_F_LAST_CTXT, &ctxt->flags);
- ctxt->next = hdr_ctxt;
- hdr_ctxt->next = head;
- }
/* Prepare READ WR */
memset(&read_wr, 0, sizeof read_wr);
@@ -348,7 +339,17 @@ next_sge:
rdma_set_ctxt_sge(ctxt, &sge[ch_sge_ary[ch_no].start],
&sgl_offset,
read_wr.num_sge);
-
+ if (((ch+1)->rc_discrim == 0) &&
+ (read_wr.num_sge == ch_sge_ary[ch_no].count)) {
+ /*
+ * Mark the last RDMA_READ with a bit to
+ * indicate all RPC data has been fetched from
+ * the client and the RPC needs to be enqueued.
+ */
+ set_bit(RDMACTXT_F_LAST_CTXT, &ctxt->flags);
+ ctxt->next = hdr_ctxt;
+ hdr_ctxt->next = head;
+ }
/* Post the read */
err = svc_rdma_send(xprt, &read_wr);
if (err) {
diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index 569ecaca0e8b..889a897d41ac 100644
--- a/sound/soc/codecs/tlv320aic3x.c
+++ b/sound/soc/codecs/tlv320aic3x.c
@@ -1187,10 +1187,8 @@ static struct i2c_driver aic3x_i2c_driver = {
.name = "aic3x I2C Codec",
.owner = THIS_MODULE,
},
- .id = I2C_DRIVERID_I2CDEV,
.attach_adapter = aic3x_i2c_attach,
.detach_client = aic3x_i2c_detach,
- .command = NULL,
};
static struct i2c_client client_template = {

Privacy Policy